One of the mysteries of the English language finally explained.
A person who acquiesces in, adopts, or imitates a view or policy (especially a successful or popular one) proposed or championed by another (usually rival) person or party; (more widely) a person who rushes to follow a trend.
1920s. From me too + -er. Compare later me-too.
In this article we explore how to impress employers with a spot-on CV.